The Most Fun Car Mod in Australia? ThatCarLife Reviews The Sonic Horn

If your car's going to make noise, it might as well make the right noise.

ThatCarLife skipped the spec sheet and went straight for the fun. This review is for people who already know they want a novelty car horn — the only question is whether The Sonic Horn is actually worth it or just another gimmick.

Why This Isn't Just Another Novelty Horn

Most novelty horns are disappointing in person. One fixed sound, weak output, cheap build that rattles itself loose. The Sonic Horn is built differently:

• 130dB output — loud enough to actually get a reaction. Not a confused glance. A reaction.
• Four sounds on tap — assign whatever you want to each remote button. Have one serious option and three ridiculous ones. Or go full chaos on all four.
• Load your own files — you're not stuck with whatever sounds came pre-loaded. Drag your own MP3s onto a USB and it plays them.
• Works on anything — 12V connection means it goes on cars, utes, Jeeps, motorcycles, boats, golf carts. If it has a battery, The Sonic Horn fits.

The Trolling Potential

ThatCarLife leans hard into this and the result is genuinely entertaining. At 130dB, whatever you've loaded isn't just audible — it's unavoidable. The reactions in the video speak for themselves. This thing commits to the bit.

It's also worth noting how short the setup is. Mount it, wire two leads, load sounds over USB, pair the remote. ThatCarLife had it running in under 20 minutes. The full install guide is there if you want to read ahead, but honestly — just watch the video first.

Is It Worth It?

If you want a fun car mod that also happens to be more useful in traffic than a stock horn — yes. The Sonic Horn sits at the rare crossover of genuinely practical and genuinely entertaining. Browse the free sound clips library if you want ideas before you buy, or go straight to the product page and sort out the sounds later.

Want more independent takes? Slade Washington's full walkthrough and Eric Venzon's sound-loading test are worth a watch too.

Your Car…… Your Sound.